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Piet Mondrian, Netherlands 1872-1944
Materials: white paper, thin strips of black paper, paint, glue.
First - We glued the black strips onto the white paper.
Second - We drew the design on a scratch piece of paper, and placed Y's, B's, R's, and W's in the shapes we wanted to be Yellow, Blue, Red, and White.
(It was very fun watching students puzzle over the decisions of where they wanted their colors. Erasing and rearranging. Seeing brains ticking makes me giddy.)